Skulls: we all have them. Some might be thicker than others allowing less room for a brain, but that's okay (I was talking about you!). This is a gallery of elaborate porcelain skulls created by artist Katsuyo Aoki. Now I like collecting the skulls of my enemies as much as the next bloodthirsty warrior, but never have I come across anything so delicate. "You've obviously never killed a witch before." Oh right, and you have? "No, but a friend of mine--" Please, you don't have any friends!